Cleansing fluid and sheep-dip.



WILLIAM GODSON LITTLE, OF EAST GRINSTEAD, ENGLAND.

CLEANSING FLUID AND SHEEP-DIP.

No Drawing.

Specification of Letters Patent. Application filed Jply 2, 1910. Serial No. 570,166.

Patented May 16, 1911.

To all whom it may concern.-

Be itknown that I, WILLIAM GonsoN LIT- TLE, a subject of the King of Great Britain,

residing at Brockhurst, East Grinstead, in the county of Sussex, England, chemical manufacturer, have invented a certain new and useful Cleansing Fluid and Sheep-Dip, of which the following is a specification.

, Cleansing fluids for use as sheep dips, for disinfecting. or like purposes, as sold. to the consumer, generally consist of concentratedsolutions or emulslons of certain distillates of coaltar, preferably those heavier than water and known commercially as creosote. The consumer dilutes this fluid with water in which the creosote remains suspended. Many agents have been used for dissolving or emulsifying coal tar creosote in water for this purpose, most of them consist of some 20 kind of soap, rosin soap being generally preferred. In British specification No. 26608 of 1907 is recommended sulfonated castor oil for the purpose.

According to the present invention saponified castor oil is used for making the solution of coal tar distillate, it having been discovered that by means of this agent there can be obtained an emulsifiable fluid containing a considerably higher proportion of the distillate than is the case when other soaps are used, and that the emulsion made by diluting this fluid with water is more permanent. I prefer to use caustic soda for saponifying the castor oil.

'The following example illustrates'tlie invention:11 cwts. (112 pounds) of castor oil are introduced into a. steam-jacketed pan and to this are added 11 cwts. of caustic soda solution of 1.15 specific gravity. The mixture is heated to about 200, F. and stirred until frothing ceases. A sample is now tested to see, if the saponification is complete, that is to say, if the sample is soluble in Water. tinued, if necessary with addition of more soda. It is essential that the soda should be in slight excess. An amount of coal tar creosote substantially equal -to four times the weight of the soap in the pan, namely, about 9856 lbs. of creosote, is now added and If not, the heating is con-' the whole is again heated as described above .until aclear liquid is obtained. The product is a transparent liquid containing over 80 per cent. of coal tar distillates' and adaptcd to form a very permanent emulsion with water. l

Having thus described my invention and the best means I know of carrying the same into practical effect, I claim 1. A process of manufacturing a cleansin fluid, which process consists in mixing coa tar creosote with hydrous castor 'oil soap and heating the mixture until a clear liquid is obtained.

2. A process of manufacturing a cleansing fluid, which process consists in heating to- 'gcther castor oil and alkali lye until saponification is complete, then introducing coal tar creosote and then'hcating the mixture until a clear liquid is obtained.

A process of manufacturing a cleansing fluid, which process consists in heating together equal weights of castor oil and caustic soda solution of 1.15 specific gravity at a temperature of 200 F. until frothing ceases, then" adding coal tar creosote equal to four times the weight of the soap produced by the saponification and then heating the whole until a clear liquid is obtained.

4. A cleansing fluid for use as a sheep dip, for disinfecting and for like purposes,consisting of a clear liquid. which forms with water a permanent emulsion and consists of a mixture of coal tar creosote and hydrous castor oil soap.

5. A cleansing fluid for use as a sheep dip, for disinfecting and for like purposes, consisting of a clear liquid which forms with water a permanent emulsion and consists of a mixture of coal tar creosote and hydrous castor oil soap, containing at least 80 per cent. of coal tar creosote.

In testimony whereof l have signed my name to this specification in the presence of twb subscribing witnesses.

VVILLT AM GODSON LITTLE.

WVitncsses:

JosErr-I MILLARD, V. J Sunnrnn. 

